Removing adhering mortar from bricks.



A. RQ GHRISTMAN.

RBMOVING ADHERING MORTAR FROM BRIGKS.

' APPLICATION FILED MAY 2, 1913. 193293012' D Patented Deo. 23, w13.

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plate 8. The acting Atudinal section of `with a projecting ram 3, 4- acrank 'entran erasing ALBERT R. CHRISTMAN, 0F PHILADELPHIA,PENNSYLVANIA,

ernten.

REMOVING- ADHERING MORTAR FROM BRICKS.

. Specification of'Lctters Patent. Application filed May',

Patented Dec. 23, 19nd..

1913. Serial No. 765,042.

T0 all wwm 'it may concern:

'Be it known that I, ALBERT R. CHRIST- MAN, a citizen of the UnitedStates, residing in Philadelphia, Pennsylvania, have invented certainImprovements in Removing Adhering Mortar from Bricks, of which thefollowing is a specification.

My invention relates to the cleaning of mortar from bricks, cilitate andperfect the operation and to render such operation perfectly safe. Theseobjects I attain in the manner hereinafter set forth, reference beinghad to the accompanying drawings, in which--` Figure l is a plan or topview ofamachine for cleanin bricks inaccordance with my invention; Fig.2 is a side elevation of the same looking in the direction of the arroww, Fig. l; Figs. 3 and4 are side elevations, onalarger scale,illustrating the operation of a certain die and ram whereby thepreliminary cleaning of a portion of the brick is effected; Fig. 5 is atop view of said preliminary cleaning die and ram; Fig. 6 is aperspective view of the brick after the the same has been effected; Fig.7 is a longithe main cleaning die illustrating also the manner ofapplying the partially cleaned brick thereto; Figs. 8,` 9,

'l0 and llare diagrams illustrating in different relations to oneanother a certain cam and a lever for moving one of the sides of thelinal cleaning die, and Fig. l2 is a perspective view on a larger scaleof said lever.

In Figs. l and 2 of the drawings, l represents the main frame, 2 asliding plunger shaft, and 5 a connecting rod whereby the reciprocati onof such plunger by means of said crank shaft is effected, all of theseparts being common and' therefore requiring no further or more detaileddescription.

Mounted upon the main frame, at one side of the machine, are three dieplates 6, 7 and 8, the die plate 8 being vertical and the die plates 6and 7 horizontal and disposed 'one above another and with their inneredges adjacent to the face of the die faces of all of the plates t3, 7and 8 are toothed, as shown in Figs. 3, l and 5, and the upperhorizontal plate 6 its objects being to fa.

preliminary cleaning of and the vertical plate 8 but the lowerhorizontal erence, pivoted at one by a spring 9 so that it can yielddownwardly when the pressure of the spring is overcome, the extent ofupward movement of said plate 7 being determined by the full expansionof the spring 9.

Projecting from one side of the plunger 2 through a suitable guide'slotin the corresponding side of the machine frame is an arm l() whichcarries a ram 11, the latter, on the back strokeof the plunger, beingadapted to pass between the die plates 6 and 7 and in front of the dieplate 8 at the side of the machine. The die plates 6 and 7 arerelatively shallow but can receive between them a few inches of one endof the brick to be cleaned, and the acting faces vof said plates aretapered sc as to be farther separated from one another at one end than`at the other, as shown in Fig. 8. An attendant grasping an uncleancdbrickat one end can, therefore, without anyrisk of injury, place itsopposite end between the die plates 6 and 7 and in front of the ram 1l,as shown` in Fig. 3, the front end of the brick bearing such relation tothe face of the die plate 8 that, when the brick is thrust by theadvancing ram 1l between the plates 6 and 7 and across the the adheringmortar will be cleaned from plate 7, is, by prefthe top and bottom facesof the 'brick for a distance of an inch or more back from the front end.as shown in Figs. 5 and 6.

The finishing die 12 is carried by a slide 13 which is suitably guidedon a transverse structure 14 at one endv of the frame, reciproatintervals by any suitable mechanism operating inconjunction with theplunger 2, this movement being such that at one of its terminations thedie l2 will be in line with the ram 3 of the plunger and at the other ofits terminations said die will be at one side of the machine and out ofthe path of the plunger, shown in Fig. l.

The nishing die is composed of opposite side plates 15, a bottom'plate1G and a top plate 17, the bottomv plate 16 being rigid Assrenor. orvONE-nerr face of the plate 8,v

the front end of the brick and also fromcating movement being impartedto this slide are fixed in position end and acted upon llO but the topplate 17 being pivoted at the rear end and normally depressed by theaction of a coiled spring 18, as shown in Fig. 7. The top plate 17 can,however, be raised, when desired, against the pressure of the spring 18,the means employed in the pres-A ent instance for this purpose being arod 19 pivotally connected at its lower end to the die plate 17 andlikewise connected at its upper end to' the forward arm of a lever 2Owhich is pivotally mounted upon a standard 21 projecting' upwardly fromthe slide 13, as shown in Fig. 7.

As the slide 13 is moved back and forth,`

the rear arm of the lever 2O is acted upon by a cam bar 22, fiXedlymounted upon the top of the cross frame 14. The rear arm of the lever 20has a hinged section 23 (Fig. 12) normally kept in line with the rest ofthe arm by. a spring 24 but Capable of yielding upwardly when subjectedto pressure from below.

The action of the cam bar upon the lever` 20 is as follows, referencebeing had to Figs. 8, 9, 10 and 11: When the slide 13 is at that limitof its movement where the die 12 is in line with the ram 3 the lever 20occupies the relation to the cam bar 22 shown in Fig. 8, that is to say,it is beyond the end of the cam bar and its rear arm is below the undersurface of the elevated end of said cam bar.

' As the die carrying slide 13 moves to the left, the lever 20 iscarried beneath the cam bar 22, as shown in Fig. 9, and is acted uponthereby so as to depress the rear arm of the lever and raise the forwardarm of the same,

x thereby lifting the upper die -plate 17. Said upper dic plate isretained in the elevated position until the slide 13 has almost reachedthe limit of its movement to the left, whereupon theaear arm of thelever 20 passes from, under the cam bar 22, as shown in *ig/F10, and,being free to rise, permits the upper die plate 17 to be depressed bythe s ring 18. On the movement of the slide 13 to the right the rear armof the lever 2() passes over the top of the cam bar 22 and its pivotedmember 23 is raised by contact with the elevated end of said cam bar, asshown in Fig. 11, but when the lever passes beyond the cam bar, saidpivoted memberv snaps back to its normal position so as to pass beneaththe cam bar on the next move ment of the slide 13 to the left.

Immediately in front of the die 12, lwhen the latter is iii the positionshown in Fig. 1, is a rail or bar 26 which is flush with or slightlyabove the bottom plate 16 of the die. An attendant holding a partiallycleaned brick, such as shown in Fig. 6, may, theretore, rest the cleanedend of said brick on said bar so that said cleaned end will projectbeyond the bar and toward the die 12, this cleaned, projecting portionof the brick,

when the die 12 reaches the position shown in Fig. l, being between theforward ends of the lower and upper plates 16 and 17 of the die, asshown in Fig.

As the die on its movement to the left approaches the brick the upperdie plate 17 is raised so as to be free from contact with the upper faceof the-brick, but, just as the die reaches the limit of its movement,the lever 2O passes from under the infiuenceof the cam bar 22 and theupper snaps down upon the top of the brick and securely confines saidbrick between the upper and lower plates of the die, whereby, as

the die moves from the side of the machinel toward the centenof thesame, it will carry the partially cleaned brick with it, and will. stopwith lthe'brick in line with the ram 3. When the ram advances,therefore, A.it will strike the rear end of the brick and will i forcethe same through thedie so as to remove the mortar from the right andleft hand sides of the brick and complete the removal of the mortar fromthe top and bottom sides of the same.

It will be noted on reference to Fig. 7

that the top and bottom plates of the die 12 project beyond the sideplates 15, conse-l quently the presence of mortar' up to the end of thebrick on those sides which correspond with the side plates 15 of the diewill not interfere with the proper placing of the parmuy Cleaned end ofthe brick between the upper and lower plates of the die.

'If desired, a bar or rail 27 may be disposed above the rail 26 forcontact with the cleaned top face of the brick when the cleaned lowerface of the same rests on said rail 26, thus serving to support thepartially cleaned brick in position to be engaged by the top and bottomplates of the die 12, even should the attendant let go of the brickbefore the die reaches the proper position to engage the same.

lThe machine is -intended to be operated by two attendants one of whom,located at'one side of the machine, presents the bricks to thepreliminary cleaning die and, after the partial cleaning of the brick,places it in position to be handled by the other attendant, located atthe opposite side of the machine, the latter attendant presenting thepartially cleaned brick in position to be clamped between `the plates 16and 17 of the finishing die 12. In neither case, however, are the hands.of the attendants brought into position to be struck by a moving part ofthe machine, or caught between a fixed and adhering mortar from bricks,said mode consisting in first cleaning the mortar from opposlte sides ofthe brick at and near one end of the same in orderto prepare said brickfor insertion between the jaws of a die, then inserting said partiallycleaned sides of the brick between said. jaws, and then driving thebrick through said die.

In. testimony whereof, ll have Signed my name to this specification, inthe presence of two subscribing Witnesses.

ALBERT R. CHRISTMAN.

Witnesses t KATE A. BEADLE, HAMILTON D` TURNER.

